# [SOLVED] permutation and combination problem

• Apr 10th 2009, 03:18 AM
K A D C Dilshan
[SOLVED] permutation and combination problem
Can somebody help me to figure out whether 2 and 3 have different meanings ?

Q :
Consider 4 vowels (including a) and 8 consonants (including b)

1)How many 5 letters "words" containing 2 different vowels and 3 different consonants can be formed from the letters ?
2)How many of them contain 'b' ?
3)How many of them being with 'b' ?
• Apr 10th 2009, 03:22 AM
Hello K A D C Dilshan
Quote:

Originally Posted by K A D C Dilshan
Can somebody help me to figure out whether 2 and 3 have different meanings ?

Q :
Consider 4 vowels (including a) and 8 consonants (including b)

1)How many 5 letters "words" containing 2 different vowels and 3 different consonants can be formed from the letters ?
2)How many of them contain 'b' ?
3)How many of them being with 'b' ?

Sorry, but (3) is not a grammatical English sentence. Is this the original wording of the question? If it is, you should consult the person who wrote it to explain its meaning.

• Apr 10th 2009, 03:29 AM
K A D C Dilshan
Quote:

Hello K A D C DilshanSorry, but (3) is not a grammatical English sentence. Is this the original wording of the question? If it is, you should consult the person who wrote it to explain its meaning.

Why do you say it is not a grammatically correct sentence ?
Doesn`t t have any meaning ? any meaning ?
• Apr 10th 2009, 04:09 AM
mr fantastic
Quote:

Originally Posted by K A D C Dilshan
Why do you say it is not a grammatically correct sentence ?
Doesn`t t have any meaning ? any meaning ?

Grandad says that because it's true. Do you mean How many of them begin with 'b'?
• Apr 10th 2009, 04:13 AM
K A D C Dilshan